package com.example.demo.customer;

import com.example.demo.DemoApplication;
import com.example.demo.exception.NotFoundException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Objects;


@Service
public class CustomerService {

   private final static Logger LOGGER = LoggerFactory.getLogger(CustomerService.class);

   private final  CusterRepository custerRepository;

   @Autowired
   public CustomerService( CusterRepository custerRepository){
      this. custerRepository = custerRepository;
   }

   List<Customer> getCustomers(){
      LOGGER.info("getCustomers called");
      return custerRepository.findAll();
   }

   Customer getCustomer(Long id){
      return custerRepository
              .findById(id)
              .orElseThrow(() -> {
                 NotFoundException notFoundException =  new NotFoundException("customer " + id + "无法找到");
                 LOGGER.error("error:getCustomer {}" + id,notFoundException);
                 return notFoundException;
              });


   }
}
